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The display will feature illustrations by the author which were used in his novels

Sketches which are said to bring to life "one of the landmarks of 20th Century fiction" are due to go on display in Edinburgh.

The art work by Alasdair Gray will be shown at the University of Edinburgh's Talbot Rice Gallery.

The display will feature illustrations by the 75-year old author which were used in novels such as Lanark, Poor Things and Old Men In Love.

The exhibition will run from 23 October until 11 December.

The exhibition coincides with the launch of A Life in Pictures, an extensive visual biography of the Glasgow-born writer, and a display of Gray's portraits at Scottish National Gallery of Modern Art in Edinburgh.

Gray originally trained as a visual artist at Glasgow School of Art, from 1952 to 1957, and has worked with both pictures and text ever since.

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An untitled self-portrait sketch by Alasdair Gray

Though he became better known as a writer, in recent years Gray's visual work has begun to receive international recognition.

His works combine elements of realism, fantasy, and science fiction, plus use of typography and his own illustrations.

He has written on politics, in support of socialism and Scottish independence, and on the history of English literature.

He received critical acclaim for his novel Lanark, published in 1981 and written over a period of almost 30 years.